Melissa Denker
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Undergraduate MBChB Year 2 Test sobre Endocrine Block - THYROID (Week 3), creado por Melissa Denker el 30/11/2015.

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Melissa Denker
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Endocrine Block - THYROID (Week 3)

Endocrine Block - THYROID (Week 3)

Pregunta 1 de 10

1

Which connection allows communication between the hypothalamus and anterior pituitary gland?

Selecciona una de las siguientes respuestas posibles:

  • Hypophyseal portal system

  • Hypothalamic hypophyseal tract

  • Infundibulum

  • Sphenoid sinus cavity surrounding the pituitary gland

Explicación

Pregunta 2 de 10

1

Which connection allows communication between the hypothalamus and the posterior pituitary gland?

Selecciona una de las siguientes respuestas posibles:

  • Hypophyseal portal system

  • Hypothalamic hypophyseal tract

  • Infundibulum

  • Sphenoid sinus cavity surrounding the pituitary gland

Explicación

Pregunta 3 de 10

1

Which hormones are produced by the posterior pituitary gland?

Selecciona una o más de las siguientes respuestas posibles:

  • Oxytocin

  • ADH

  • Prolactin

  • TSH

  • FSH/LH

  • GH

  • ACTH

Explicación

Pregunta 4 de 10

1

What is the correct order of the following anterior pituitary cell types, from most abundant to least abundant?

Selecciona una de las siguientes respuestas posibles:

  • Somatotrophs (50%)
    Lactotrophs (20%)
    Corticotrophs (10-15%)
    Gonadotrophs (10%)
    Thyrotrophs (5%)

  • Somatotrophs (50%)
    Lactotrophs (20%)
    Gonadotrophs (10-15%)
    Corticotrophs (10%)
    Thyrotrophs (5%)

  • Gonadotrophs (50%)
    Lactotrophs (20%)
    Corticotrophs (10-15%)
    Thyrotrophs (10%)
    Somatotrophs (5%)

  • Somatotrophs (50%)
    Lactotrophs (20%)
    Corticotrophs (10-15%)
    Thyrotrophs (10%)
    Gonadotrophs (5%)

  • Corticotrophs (50%)
    Lactotrophs (20%)
    Somatotrophs (10-15%)
    Gonadotrophs (10%)
    Thyrotrophs (5%)

Explicación

Pregunta 5 de 10

1

What are the 6 hormones released by the anterior pituitary gland?

Selecciona una o más de las siguientes respuestas posibles:

  • ADH

  • Oxytocin

  • GH

  • FSH/LH

  • Prolactin

  • ACTH

  • TSH

Explicación

Pregunta 6 de 10

1

Which hypothalamic hormone stimulates the secretion of adrenocorticotrophic hormone (ACTH) from the anterior pituitary gland?

Selecciona una de las siguientes respuestas posibles:

  • Corticotrophic releasing hormone (CRH)

  • Thyroid releasing hormone (TRH)

  • Growth hormone releasing hormone (GHRH)

  • Gonadotrophin releasing hormone (GnRH)

  • Dopamine

Explicación

Pregunta 7 de 10

1

Which test results would indicate cranial diabetes insipidus?

Selecciona una de las siguientes respuestas posibles:

  • Water deprivation test - patients are desperate to drink; urine osmolality remains low
    Response to ADH - DI improves

  • Water deprivation test - patients are desperate to drink; urine osmolality stays low
    Response to ADH - DI does not improve

  • Water deprivation test - urine osmolality becomes high (i.e. concentrated)
    Response to ADH - DI improves

  • Water deprivation test - urine osmolality becomes high (i.e. becomes concentrated)
    Response to ADH - DI does not improve

Explicación

Pregunta 8 de 10

1

What is the correct order for rates of functional pituitary adenomas?

Selecciona una de las siguientes respuestas posibles:

  • Prolactinomas (30%)
    Cushing's disease (20%)
    Acromegaly (15%)
    TSHoma (<1%)

  • Prolactinomas (30%)
    Cushing's disease (20%)
    TSHomas (15%)
    Acromegaly (<1%)

  • Acromegaly (30%)
    Cushing's disease (20%)
    Prolactinomas (15%)
    TSHoma (<1%)

  • Prolactinomas (30%)
    TSHoma (20%)
    Acromegaly (15%)
    Cushing's disease (<1%)

Explicación

Pregunta 9 de 10

1

Rellena los espacios en blanco para completar el texto.

Describe the process of thyroid hormone production:
1. Iodine is actively transported into the via on the basolateral side of the cell (this is called )
2. Iodine diffuses to the luminal side of the cell
3. Iodine is transported into the follicle lumen by , a membrane transporter
4. The follicle cells secrete (containing ~70 amino acids) into the lumen
5. Iodide ions undergo to form via the action of the enzyme
6. of the thyroglobulin molecule:
---Iodine binds to tyrosine amino acids within the thyroglobulin molecule via the action of
---This forms
---This undergoes further iodine binding to form
---MIT/DIT molecules are coupled to each other
7. If two DIT molecules couple together, is formed
8. If one MIT molecule couples with one DIT molecule, is formed

Explicación

Pregunta 10 de 10

1

How much more concentrated is iodine in the thyroid than in the blood?

Selecciona una de las siguientes respuestas posibles:

  • x30

  • x60

  • x90

  • x120

Explicación

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